NOAA S-57 chart cell
Gulf Intracoastal Waterway - Morgan City to Vermilion Bay and Gulf of America
US3LA1CB
- Usage band
- Coastal · code 3
- Current edition
- 1.2
- Features
- 5,472
- S-57 layers
- 59
- Published
- Dec 3, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 30.00000° N
- South
- 28.80000° N
- West
- 92.40000° W
- East
- 91.20000° W
- Center
- 29.40000° N, 91.80000° W
- Bounds area
- 4,522 sq nm
- Feature density
- 1.21 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 92.7
- Smallest layer
- 1
- Largest layer
- 1,751
- Area sq km
- 15,511
- Features per sq km
- 0.35277
- PIPSOL 1,751
- COALNE Coastline 434
- DEPARE Depth area 387
- DEPCNT Depth contour 364
- LNDRGN Land region 275
- LNDARE Land area 265
- OBSTRN Obstruction 237
- DAYMAR 174
- LIGHTS Light 168
- BCNLAT Lateral beacon 159
- OFSPLF 135
- SBDARE Seabed area 131
- WRECKS Wreck 119
- RIVERS River 117
- SEAARE Sea area 98
- BCNSPP Special purpose beacon 71
- SOUNDG Sounding 60
- BUAARE 53
- PILPNT 47
- CTNARE Caution area 42
Nearby Chart Cells
Coastal usage band
Current Edition Files
The NOAA ZIP archive is the upstream source for this chart cell; the other files are Open Ships generated derivatives for web and GIS use.
- Original NOAA ZIP archive https://www.charts.noaa.gov/ENCs/US3LA1CB.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/coastal/US3LA1CB/1.2/US3LA1CB.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/coastal/US3LA1CB/1.2/US3LA1CB.001
- S-57 update 002 https://charts.openships.ai/noaa/s57/coastal/US3LA1CB/1.2/US3LA1CB.002
- GeoJSON https://charts.openships.ai/noaa/s57/coastal/US3LA1CB/1.2/US3LA1CB.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/coastal/US3LA1CB/1.2/US3LA1CB.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/coastal/US3LA1CB/1.2/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.2 | Dec 3, 2025 | metadata.json |